body {
  background-color: #eee;
}

.container {
  box-sizing: border-box;
  max-width: 1200px;
  margin: 0 auto;
}

header {
  float: left;
  padding: 0.25em 1em;
}
header h1 {
  margin: 0;
  padding: 0;
}

nav {
  float: right;
  padding: 0.25em 1em;
}
nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
nav ul li {
  display: inline;
}
nav ul li:last-child {
  margin-left: 1em;
}

main {
  clear: both;
  background-color: #fff;
  border: 1px solid #ccc;
  padding: 1em;
  box-sizing: border-box;
}

footer {
  text-align: right;
  padding: 0.25em 1em;
}